An ArcGis geoprocessing tool that calculates the least-cost path from a source to a destination.

learn more… | top users | synonyms (1)

0
votes
1answer
33 views

Cost Surface algorithm in ArcGIS

based on this arcticle "Extensions to least-cost path algorithms for roadway planning (Chaoqing, Jay, dan Mandy 2002)" see link below: ...
1
vote
0answers
37 views

GRASS GIS r.walk issue

I have been playing around with GRASS GIS to do a simple cost analysis of getting from point A to point B. I have a DEM clipped to the study area, a raster containing the friction costs, as well as ...
0
votes
0answers
24 views

Cost Distance for urban and roads?

I've been working in GIS for years but I haven't done much raster analysis until recently. I need to create a cost distance for an urban area for a land capability map, and also one for roads ...
3
votes
2answers
123 views

Cost Distance Analyst In QGIS?

Are there any tools, plugins or methods in QGIS which allows for an analysis of the best path between two points using least cost path method? As shown below ArcGIS has several distance tools.
0
votes
0answers
30 views

Euclidean Distance with Weighted Values

I am currently dealing with a dataset which consists of about 2700 points stochastically placed in a study area of about 650,000 sqKm. I am trying to create a distance raster for these points, which I ...
0
votes
0answers
38 views

How to find a least cost path through several points?

I want to do a least cost path analysis and the least cost path has to go through several different points instead of having just a start and end destination. Is this possible? I am using ArcGIS ...
0
votes
1answer
26 views

How to find out the length and friction costs of my least cost path?

I modeled different possibilities for transmission lines with the GIS tool "Cost Path". Now I would like to find out more information about my results. First of all: Where can I see the length of my ...
1
vote
1answer
64 views

Cost Distance interpretation in ArcGIS 10.2

I am using the Cost Distance tool in ArcMap 10.2 to find the how far it is to walk to the closest area of green space along the road network in a town. I have a input raster of the location of the ...
1
vote
1answer
50 views

How to create landscape resistance map using path level spatial randomisation in QGIS?

I need to create a landscape resistance map based on path level spatial randomisation, as I have read in some research papers. Are there tools for this? I need to randomly shift and rotate the the ...
0
votes
1answer
53 views

What exact format do I need to have for the inputs to make Path Distance work?

I am trying to run the Path Distance tool in ArcGis 10.1. Ideally I would like to utilize Tobler's hiking formula anisotropic approach to slope and a land cover cost surface to calculate the least ...
3
votes
1answer
52 views

Including rivers in least cost analysis in ArcGIS 10

I am relatively new to ArcGIS so please bear with me!! I am looking to find the least cost path between a number of points in a landscape (eastern Sicily) that avoids rivers (obviously a Roman cart ...
1
vote
0answers
36 views

Using the accCost() function in R: questions regarding the transition layer

I am trying to use the accCost() function from the gdistance package in R. I load my cost raster using the raster()function from the raster package. According to the documentation, I need first to ...
2
votes
2answers
109 views

GRASS tutorials, spec r.walk, r.cost

Recently got enamored with the idea of doing a time-based and an energy-based least cost path analysis. After doing some research, I see that GRASS is the best for executing time-based given the ...
0
votes
0answers
16 views

implement aspect in least cost path analysis to account for downhill and neutral ground movement [duplicate]

I am creating a least cost path model for large species that migrate over large distances across a rugged landscape (elk, deer, etc.) To calculate movement cost I am using a slope raster but I ...
1
vote
0answers
95 views

Best software for a least cost path analysis [closed]

Background: running a least cost path analysis across mountains in middle east for archaeology project. Ideally, pick several points across an arbitrary interval distance (e.g. 1 km apart) and same ...
3
votes
0answers
119 views

Cost Path: multiple pairs of sources and destinations

I have seen many questions related to this problem but very few answers. I am very new to scripting and using ModelBuilder, but I am trying to calculate the cost path for 200 polygons with a single ...
1
vote
0answers
56 views

CostPath gives error for specific points?

I am using the tool CostPath. As an input feature destination data I've entered several points (no specific value, just distributed geographically), and as the cost distance raster I've entered the ...
1
vote
0answers
129 views

How to create least-cost path between two polygons with GRASS?

I am completely a beginner in GRASS but I would like to use it to have the cumulative cost of moving between two polygons. More exactly, I would like to get the smallest cost from any point situated ...
0
votes
1answer
80 views

How to resolve ERROR 010271: Raster does not have an attribute table?

From my code which builds least-cost paths between several polygons by using the functions "CostDistance" and "CostPath" of ArcGIS , I obtain this error message: ExecuteError: ERROR 010271: Raster ...
2
votes
0answers
437 views

Cause of ExecuteError: ERROR 010067 from arcpy.sa.CostPath?

By using the code below that creates least-cost paths between several polygons, I obtain this error message: ExecuteError: ERROR 010067: Error in executing grid expression. Initalization failed ...
1
vote
2answers
2k views

What causes ValueError: I/O operation on closed file? [closed]

I obtain the following error message: ValueError: I/O operation on closed file Here is my code (It selects each polygon contained in the shapefile "selected_polygons.shp" and builds the least-cost ...
0
votes
1answer
2k views

What causes AttributeError: 'module' object has no attribute 'da'?

I have a shapefile "selected_polygons.shp" that contains 2000 polygons. I would like to select each polygon contained in the shapefile by using a search cursor in order to apply the function ...
0
votes
1answer
140 views

How to automatically generate least-cost paths between several polygons?

What is the fastest way to automatically generate least-cost paths (LCPs) between several polygons with ArcGIS ? I created a python program to do this by using the functions "CostDistance" and ...
0
votes
2answers
52 views

Handling 2s in cost path analysis output?

I am trying to compute shortest distance to stream from various point locations on the landscape. I am using the cost path tool in spatial analyst to do this . I am using a DEM as a cost distance ...
3
votes
1answer
184 views

Distance from rivers, taking into account terrain elevation

I am interested in building a raster of the distance from rivers in a territory under study. I have digitized the course of the rivers in ArcGis 10.1. I have used the 'Euclidean Distance' tool to ...
3
votes
2answers
69 views

Choosing projection to use for Least-Cost Path analysis at continental scale?

I am trying to find least cost paths from the southern USA to the Great Lakes region (for example). My resistance layers are currently in an equal area projection but I'm wondering if I should convert ...
0
votes
1answer
53 views

What is the right methodology to assign costs to edges of a network?

I am producing a routing facility for cycling safety based on an OSM network. The edges of this network have costs and these are calculated from different criteria both related to intrinsic (as the ...
0
votes
1answer
96 views

What is an anisotropic cost-of-passage map called in ArcGIS 10.1

I am trying to make sense of a few sources of information. In Geographic Information Systems in Archaeology Conolly and Lake (2006: 214-224) provide a sort of "step-by-step" procedure for creating ...
1
vote
0answers
72 views

Implement a least cost path in a graph

I am trying to produce a routing functionality in a web-GIS that, given a start and an end point, will retrieve the least cost path taking into account points along edges representing major costs, ...
4
votes
2answers
86 views

Path Distance calculation limited to downhill only

I am trying to calculate a path between two points with a relative elevation difference of about 100m and 3km separation. The points represent the start and end of a gravity fed waste water pipe. ...
1
vote
1answer
185 views

Cost Distance Paths in Python

I have a feature dataset with 317 points (UpperPoints) and another with 394 (LowerPoints) points. Now I want to calculate the cost paths as in this example here. However there are multiple files used ...
0
votes
0answers
18 views

What happens if raster overlapping when I run cost distance?

I'm having problem with the cost distance tool in Arcmap. I need to use cost distance to find out the cost of having to move from a subway station to a green area. But the resulting cost distance ...
0
votes
2answers
107 views

Cost-Distance Tool not producing logical answer

I am working on creating a cost catchment based on Tobler's equation in ArcGIS10.1. I feel confident in my cost surface; it produces a raster where each cell equals the time in hours that it would ...
3
votes
0answers
93 views

How to create cost surface for least cost water transport analysis?

I am working on a project to derive least cost pathways between sites by dug out canoe travel. Has anyone worked on a similar project or found a function like the Tobler hiking function that can be ...
0
votes
1answer
24 views

whereClause syntax for Cost Distance parameter

I am looking to create a sql expression regarding point feature class and selection based on 'Name' field to pass to arcpy.sa.CostDistance() param[0]. similat to: savepath = env.workspace = ...
0
votes
1answer
34 views

Can I avoid decimal conversion calling CostDistance

Our client asked us to incorporate blockages and delays for movement of boats and ships on the local waterways. In our one process we are creating polygons of the distance a boat can move at top ...
0
votes
1answer
236 views

How to create a loop for multiple points with cost distance / cost path in ArcGIS 10.2 in python

I would like to know how to simplify the following code in order to execute it more efficiently than copy paste 82 processes (with a loop I guess?) but I don't know how to do it. There are 4 main ...
4
votes
3answers
228 views

How to model money cost as an accumulator in network analysis?

This is not necessarily a technical coding question, although any links that include coding are welcome if they are answering my question. I am looking for research or analysis that has been done in ...
1
vote
1answer
1k views

How to Create Cost Surface Raster for Least Cost Path Analysis?

I have a DEM raster and would like to carry out a cost path analysis. Among other factors such as slope, proximity rivers etc. I would also like to take elevation into consideration. According to ...
1
vote
1answer
119 views

ArcGIS: Least-Cost Path between points; Source Destinationissue

I am trying to find the least-cost path between 2 points. The problem I am having is that if I use point A as source and point B as destination, I get a value, but when I do the opposite i.e., use ...
0
votes
1answer
27 views

Create Cost Array ignores NoData!

After a great deal of research here is what is happening: We select two points on a hydrography map with an island inbetween. It is expected that the CostDistanceWithPolyline would return a line that ...
0
votes
1answer
162 views

calculate least cost pathways for a region and create distance rasters to rivers [duplicate]

How do you calculate all the least cost pathways that exists for a region? I would like the output map to display all routes (and was wondering whether this can be done in one set of operations). I ...
3
votes
2answers
233 views

How to calculate the distance of sites to riverways

How do you calculate the distance of about 10 sites scattered across a region to bodies of water (rivers and lakes) using ArcGIS 10.1? I have the lat/lon coordinates of the 10 sites as a point ...
3
votes
1answer
983 views

How to perform a Cost Path analysis in ArcGIS 10.1?

Is it possible to model the easiest pathway through a landscape between many points (rather than just two)? I want to carry out a cost-path analysis, I would like to display the easiest pathways ...
2
votes
1answer
165 views

How to find least-cost paths including tunnels (where slopes are too steep)?

I'm currently working on a road path finding project for a motorway in ArcGIS 10. One criterion is obviously the slope angle. What I would like to do is to create a new cost surface which finds ...
1
vote
1answer
139 views

QGIS Grass Plugin fails with r.cost.vect

I tried the following in QGIS with the Grass Plugin: r.cost input=preCostSurface@albi start_points=OSMroads@albi output=cost0109 max_cost=0 And I get the following error: Dev note: Adapted sites ...
2
votes
0answers
69 views

Get distance after path distance allocation

I use ArcGIS 10.1 in Windows XP. I have a two point feature data sets One containing a single point P1 and another containing multiple points Pm. I computed the minimum-distance path from P1 to each ...
1
vote
2answers
425 views

How to find the shortest route between two points based on cost surface?

I have two locations: (A) starting point and (B) designation. Also I have a slope raster. I want to find the cheapest path between these two locations based on the slope (it is more expensive to ...
7
votes
3answers
529 views

How to create an OD road distance matrix in QGIS?

I'm looking for the steps required to produce an origin-destination (OD) cost matrix. What I'm looking for is a matrix of road distances. The distance matrix tool only produces euclidian distances. ...
4
votes
0answers
305 views

How to convert a raster (array) to a NetworkX graph and do a * search?

I want to use a slope-raster for a a_star path analysis in NetworkX. I am using Python for this project. My test raster looks like this First I read in the raster with GDAL input_raster = ...